Class: Preforker::Util

Inherits:
Object
  • Object
show all
Defined in:
lib/preforker/util.rb

Class Method Summary collapse

Class Method Details

.is_log?(fp) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/preforker/util.rb', line 17

def self.is_log?(fp)
  append_flags = File::WRONLY | File::APPEND

  ! fp.closed? &&
    fp.sync &&
    fp.path[0] == ?/ &&
    (fp.fcntl(Fcntl::F_GETFL) & append_flags) == append_flags
end

.tmpio ⇒ Object

creates and returns a new File object. The File is unlinked immediately, switched to binary mode, and userspace output buffering is disabled



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# File 'lib/preforker/util.rb', line 29

def self.tmpio
  fp = begin
         TmpIO.open("#{Dir::tmpdir}/#{rand}",
                    File::RDWR|File::CREAT|File::EXCL, 0600)
       rescue Errno::EEXIST
         retry
       end
  File.unlink(fp.path)
  fp.binmode
  fp.sync = true
  fp
end